Comment by aaronbaugher

It didn't really even work on Star Trek. They could pretend it did as long as they were on a ship that flew away at the end of every episode. But on DS9, since they were stationary and had to deal with other economies, the issue of money came up fairly often.

The post-scarcity thing didn't hold up to scrutiny either, even fictionally: there was nearly a civil war on Bajor because the Federation couldn't come up with enough soil reclamators to prevent a possible famine at one point. Any time something needed to be scarce for the sake of the plot or drama, it was.